BCLib/src/main/java/ru/bclib/util/JsonFactory.java
2021-07-10 19:47:33 +03:00

120 lines
3.6 KiB
Java

package ru.bclib.util;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import net.minecraft.client.Minecraft;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.packs.resources.Resource;
import net.minecraft.server.packs.resources.ResourceManager;
import ru.bclib.BCLib;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
public class JsonFactory {
public final static Gson GSON = new GsonBuilder().setPrettyPrinting().create();
public static JsonObject getJsonObject(InputStream stream) {
try {
Reader reader = new InputStreamReader(stream);
JsonElement json = loadJson(reader);
if (json != null && json.isJsonObject()) {
JsonObject jsonObject = json.getAsJsonObject();
return jsonObject != null ? jsonObject : new JsonObject();
}
}
catch (Exception ex) {
BCLib.LOGGER.catching(ex);
}
return new JsonObject();
}
public static JsonObject getJsonObject(File jsonFile) {
if (jsonFile.exists()) {
JsonElement json = loadJson(jsonFile);
if (json != null && json.isJsonObject()) {
JsonObject jsonObject = json.getAsJsonObject();
return jsonObject != null ? jsonObject : new JsonObject();
}
}
return new JsonObject();
}
/**
* Loads {@link JsonObject} from resource location using Minecraft resource manager. Can be used to load JSON from resourcepacks and resources.
* @param location {@link ResourceLocation} to JSON file
* @return {@link JsonObject}
*/
public static JsonObject getJsonObject(ResourceLocation location) {
ResourceManager manager = Minecraft.getInstance().getResourceManager();
JsonObject obj = null;
try {
Resource resource = manager.getResource(location);
if (resource != null) {
InputStream stream = resource.getInputStream();
InputStreamReader reader = new InputStreamReader(stream);
obj = JsonFactory.GSON.fromJson(reader, JsonObject.class);
reader.close();
stream.close();
}
}
catch (IOException ex) {
BCLib.LOGGER.catching(ex);
}
return obj == null ? new JsonObject() : obj;
}
public static JsonElement loadJson(File jsonFile) {
if (jsonFile.exists()) {
try (Reader reader = new FileReader(jsonFile)) {
return loadJson(reader);
}
catch (Exception ex) {
BCLib.LOGGER.catching(ex);
}
}
return null;
}
public static JsonElement loadJson(Reader reader) {
return GSON.fromJson(reader, JsonElement.class);
}
public static void storeJson(File jsonFile, JsonElement jsonObject) {
try (FileWriter writer = new FileWriter(jsonFile)) {
String json = GSON.toJson(jsonObject);
writer.write(json);
writer.flush();
}
catch (IOException ex) {
BCLib.LOGGER.catching(ex);
}
}
public static int getInt(JsonObject object, String member, int def) {
JsonElement elem = object.get(member);
return elem == null ? def : elem.getAsInt();
}
public static float getFloat(JsonObject object, String member, float def) {
JsonElement elem = object.get(member);
return elem == null ? def : elem.getAsFloat();
}
public static boolean getBoolean(JsonObject object, String member, boolean def) {
JsonElement elem = object.get(member);
return elem == null ? def : elem.getAsBoolean();
}
public static String getString(JsonObject object, String member, String def) {
JsonElement elem = object.get(member);
return elem == null ? def : elem.getAsString();
}
}